diff --git a/clang/test/Misc/backend-optimization-failure.cpp b/clang/test/Misc/backend-optimization-failure.cpp
index 2ee42b88a1a6..3e407123ed0d 100644
--- a/clang/test/Misc/backend-optimization-failure.cpp
+++ b/clang/test/Misc/backend-optimization-failure.cpp
@@ -6,8 +6,8 @@
 
 void test_switch(int *A, int *B, int Length) {
 #pragma clang loop vectorize(enable) unroll(disable)
-  /* expected-warning {{loop not vectorized: failed explicitly specified loop vectorization}} */ for (int i = 0; i < Length; i++) {
-    switch (A[i]) {
+  for (int i = 0; i < Length; i++) {
+/* expected-warning {{loop not vectorized: failed explicitly specified loop vectorization}} */ switch (A[i]) {
     case 0:
       B[i] = 1;
       break;